<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>7.输入正确账号、密码</title>
    <script>
        var userName = prompt('请输入用户名:');
        var passWord = prompt('请输入密码:');
        while (userName != 'admin') {
            userName = prompt('请输入用户名:');
        }
        while (passWord != '123456') {
            passWord = prompt('请输入密码:');
        }
        alert('登录成功');
    </script>
</head>

<body>

</body>

</html>